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20678 (1999 VE9)
Classification: Main-belt Asteroid          SPK-ID: 2020678
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2127917193864524 3.4585e-08  
a 2.436568584126413 7.6911e-09 au
q 1.91808696570714 8.2894e-08 au
i 1.327930141020009 4.107e-06 deg
node 97.29268751003407 0.00017742 deg
peri 350.9087432326446 0.00017769 deg
M 212.5237797087629 1.0795e-05 deg
tp 2459769.596461174236
(2022-Jul-09.09646117)
4.3034e-05 TDB
period 1389.205158758048
3.80
6.5776e-06
1.801e-08
d
yr
n .2591409898893844 1.227e-09 deg/d
Q 2.955050202545686 9.3277e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1663  
   data-arc span      21372 days (58.51 yr)  
   first obs. used      1962-02-10  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52067  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:26:26  

Additional Information
 Earth MOID = .934234 au 
 Jupiter MOID = 2.26037 au 
 T_jup = 3.472 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.75   n/a E2021B10  
diameter diameter 3.217 km 0.505 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.271   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

20678 (1999 VE9)          Discovered 1999-Nov-08 by Korlevic, K. at Visnjan
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 VE9 = 1962 CF1 = 1976 YR2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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